Electronic specialized equipment manufacturing; Power distribution switchgear equipment research and development; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Motor and its control system research and development; Power facility equipment manufacturing; Power facility equipment sales; Information system integration services; Computer software and hardware and auxiliary equipment retail; Computer software and hardware and auxiliary equipment wholesale; Software development; Software sales; Intelligent instrument manufacturing; Intelligent instrument sales; Engineering and technical research and experimental development; Agricultural machinery manufacturing; Water resources specialized mechanical equipment manufacturing; Power industry high-efficiency energy-saving technology research and development; Internet of Things technology research and development; Other electronic device manufacturing; Artificial intelligence hardware sales; Electrical accessory sales; Satellite navigation services; Network and information security software development; Mechanical equipment research and development; Non-metallic mineral products sales; Glass fiber reinforced plastic product sales; Agricultural machinery services; General cargo road transportation for vehicles with a total mass of 4.5 tons and below (excluding network freight and dangerous goods); Internet of Things technical services; Security technology prevention system design and construction services; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Information system operation and maintenance services; Engineering management services; Furniture spare parts sales; Furniture sales; Calculator equipment sales; Hydrological services; Navigation, surveying, mapping, meteorology and marine special instrument manufacturing; Navigation, surveying, mapping, meteorology and marine special instrument sales; Technical services, technical development, technical consulting, technical exchange, technology transfer, technical promotion; General mechanical equipment installation services; Agricultural professional and auxiliary activities; Intelligent agricultural management. Licensed items: Electrical installation services; Basic telecommunications services; Construction engineering design; Construction engineering construction; Construction labor subcontracting